GPT-5.1 Codex (High) vs GPT-5.6 Luna (Max)

GPT-5.1 Codex (High) vs GPT-5.6 Luna (Max). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

OpenAIGPT-5.1 Codex (High)Not ranked · benchmark data missing
Intelligence
23.70
Total cost
-
OpenAIGPT-5.6 Luna (Max)Off the frontier
Intelligence
37.30
Total cost
$320
Verdict

Comparison incomplete

A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

MetricGPT-5.1 Codex (High)GPT-5.6 Luna (Max)Difference
Intelligence (higher is better)23.737.3+57.4% GPT-5.6 Luna (Max) is 57.4% more intelligent
Total AA cost (lower is better)Not reported$319.93— not comparable
End-to-end time (lower is better)11.52s103.72s+800.3% GPT-5.6 Luna (Max) is 800.3% slower
Price per 1M tokens (in / out)$1.25 / $10.0$0.20 / $1.20
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerGPT-5.1 Codex (High): what beats itGPT-5.6 Luna (Max): what beats it
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-1-codex/gpt-5-6-luna · Markdown: /api/v1/compare/gpt-5-1-codex/gpt-5-6-luna?format=md · llms.txt · agent skill